Color

#333361

#333361
hex#333361
rgbrgb(51, 51, 97)
hslhsl(240, 31%, 29%)
oklchoklch(0.345 0.079 281.4)
Closest name: Deep Sea Base (#2c2c57)Relative luminance 0.0393

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#616133

#334a61 · #4a3361

#613333 · #336133

Split-complementary

Open in tool →

#614a33 · #4a6133

#61334a · #616133 · #33614a

Contrast

#333361 as textRatioAAAA largeAAAFix
Aaon white
11.75:1passpasspassPasses AAA — no fix needed.
Aaon black
1.79:1failfailfail
  • AA: use #6f6fb3 as the text (4.6:1)
  • AAA: use #9191c5 as the text (7.06:1)
  • AA: or shift the background to #a1a1a1 (4.55:1)
  • AAA: or shift the background to #c9c9c9 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #333361 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#333361 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #333361
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #333361 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/333361-a19cc4-df994e-251f2d-e9edf1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md